84830 has 16 divisors (see below), whose sum is σ = 162000. Its totient is φ = 31872.

The previous prime is 84827. The next prime is 84857. The reversal of 84830 is 3848.

It is a super-2 number, since 2×84830² = 14392257800, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84796 and 84805.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84830.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 419.

It is an arithmetic number, because the mean of its divisors is an integer number (10125).

2⁸⁴⁸³⁰ is an apocalyptic number.

84830 is a deficient number, since it is larger than the sum of its proper divisors (77170).

84830 is a wasteful number, since it uses less digits than its factorization.

84830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 84830 is about 291.2559012278. The cubic root of 84830 is about 43.9389649606.

It can be divided in two parts, 848 and 30, that added together give a palindrome (878).

The spelling of 84830 in words is "eighty-four thousand, eight hundred thirty".